A novel boundary-first mapping method for jewelry CNC machining toolpath generation

Bangzheng Liu; Chenyang Xu

doi:10.1117/12.3056289

19 December 2024 A novel boundary-first mapping method for jewelry CNC machining toolpath generation

Bangzheng Liu, Chenyang Xu

Author Affiliations +

Proceedings Volume 13444, Fifth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Mechatronics (MEIMM 2024); 134440A (2024) https://doi.org/10.1117/12.3056289
Event: The 5th International Conference on Mechanical Engineering, Intelligent Manufacturing, and Mechatronics, 2024, Guilin, China

Abstract

With the popularity of 3D scanning and measuring techniques, the advanced jewelry manufacturing enterprises tend to machine directly on the raw blanks that contain varying degrees of shape errors, which necessitates an effective mapping method to transform the 2D paths onto the 3D-scanned mesh surface. To address the issue, this paper put forward a novel boundary-first mapping method for jewelry computer numerical control (CNC) machining toolpath generation. The proposed method first implements the conform mapping via the Boundary First Flattening (BFF) algorithm, and then flattens the mesh surface onto a fixed 2D region for design. At last, the 3D toolpaths are derived by inversely mapping the designed 2D paths. The effectiveness of the proposed method is validated through simulations results, indicating that the generated 3D toolpaths retain satisfactory shapes which are in good alignment with those in the 2D design region, remaining largely unaffected by surface shape deformations.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Bangzheng Liu and Chenyang Xu "A novel boundary-first mapping method for jewelry CNC machining toolpath generation", Proc. SPIE 13444, Fifth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Mechatronics (MEIMM 2024), 134440A (19 December 2024); https://doi.org/10.1117/12.3056289

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